Precor EFX 825, Руководство по обслуживанию

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EFX 885, 835, 825
Service Manual 20039-166
Page 2
©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
Section One - Things you Should Know
Right, Left, Front, and Back Conventions
In this manual, right, left, front, and back are from the perspective of a user standing on the C576i facing the display
enclosure.
General System Information

The generator performs three functions in the EFX. First, by controlling the amount of electrical load applied to
internal battery. Lastly, one of the generators six phase output windings is monitored to determine when the
unit is in use and when it is idle. This system also determines the stride rate by determining the operating speed
(output frequency) of the monitored generator winding.
Warning and Caution Statements and General Safety Guidelines
Warning statements indicate a particularly dangerous activity. Warning statements you will find in this manual include:

If the EFX has been in recent use, the load resistors and load resistor mounting bracket may be extremely hot.

Because this is a self powered unit, it will either be necessary to either equip the unit with the optional external
power supply or have an assistant pedal on the unit while voltage measurements are being taken. Because of the
danger of working on the unit while it is in motion using the optional external power supply is strongly
recommended.

When the unit is used, stairarms are in motion; the generator will operate and produce potentially hazardous
voltages even when the battery is disconnected.

To remove power from the EFX, the optional external power supply (when equipped) must be disconnected
from the wall outlet and the red (positive) lead must be disconnected from the battery. Always ensure that the
EFX external power supply is unplugged from the wall outlet and the red (positive) lead is removed from the
battery when you inspect or adjust the EFX, or when you isolate, remove, or replace an EFX component.

Removing the covers exposes high voltage components and potentially dangerous machinery. Exercise extreme
caution when you perform maintenance procedures with the cover(s) removed.

During service operations you will be very close to moving machinery and voltage bearing components. When
you perform maintenance procedures with the covers removed, remove jewelry (especially from ears and neck),
tie up long hair, remove neck ties, and do not wear loose clothing.

Exercise caution when touching any wire or electrical component during EFX operation.